Blower



' May 4, 1926. 158352 8 G. CLEMENVTS BLOWER Filed May 5, 1925 Invenifor, Q80?" 62 6767726732515.

Patented May 4, 1926.

UNITED STATES.

GEORGE CLEMENTS, OF CHICAGO ILLINOIS.

BLOWER.

Application filed May 5,

To all whom it may concern:

Be it known that I, GEORGE CLEMEN'rs, a

citizen of the United States, residing at Jhicago, in the county of.Cook and State of Illinois, have invented a certain new and useful Improvement in Blowers, of which the following is a specification.

My invention relates to blowers and has particular relation to blowers which may be converted into suction cleaners. It has for particular object to provide a hand blower for cleaning machinery which may be quickly and easily converted into a suction device. Other ObJGCtS will appear from time to time in the course of the specification and claims.

I illustrate my invention more or less diagrammatically in the accompanying drawings wherein- Figure 1 is a perspective view of the blower casing employed as a suction cleaner;

Figure 2 is a side elevation of the blower; Figure 3 is a front elevation of the suction hose securing ring; t

Figure 4 is a side elevation of the ring shown in Figure 3;

Figure 5 is a side hose connection;

Figure 6 is an axial view of the hose connection in Figure 5, and

Figure 7 is an axial section'through the house connection and securing ring when in place on the blower casing.

Like parts are indicated by like symbols throughout the specification and drawings.

A is a fan casing provided with an air outlet A and the axlal air inlet A Secured to it in any suitable manner is a motor casing B having therein any suitable electric motor, the details of which form no part of the present invention. B is a handle elevation of the suction herein indicated as secured to the motor casing and through which passes the electrical connection B controlled by any suitable handle switch B 4 The aperture A is surrounded by a circumferential flange C provided with the inclined lugs G Between the inner face of the flange G and the edge of the aperture is the flat, circumferential ledge C upon which is laid the circular netting C.

D is a holding or securing ring provided with inclined cam surfaces D in opposition to the inclined cam lugs C. When the securing ring is rotated, the action of the cams and cam studs sufiices to lock the se- 1923. Serial no. 636,844.

curing ring D in place against the netting, holding it firmly in place. The securing ring D is provided with the large central aperture D into which projects the cam studs D The yielding. washer D insures an air tight joint. The outer edge ofthc ring is knurled as at D E is a hose connection havinv a tapered tip E over which the hose may be slipped. It is shaped to penetrate the aperture D and is provided with the 'incllned cam surface E in opposition to the cam studs D 1 The blowing nozzle A terminates in an aperture of the same diameter as the aperture D provided with cam studs similar to the studs D and adapted to receive either a hose connection like E or a similarly formed bag connection G, or the hard nozzlt G provided with its soft rubber tip G.

H is a shoulder strap adapted to be passed I through the handle B whereby the blower when used as a suction device, maybe swung over the shoulder of the operator.

The use and operation of my invention are as follows: A hand blower is an efficient cleaner for blowin dust from machinery and for any other e caning task wherein it is not desiredto entrap and dispose of the dust or other material removed by the blower. becomes necessary however, to remove the material, a suction device is preferable. While theoretically it is possible to convert the ordinary type of blower into a suction device, in practice this necessitates a very substantial rebuilding of the machine, the unscrewing of the securing ring and the removal of the netting which closes the axial air inlet. A hose connection has to be secured to the air inlet, the whole involving practically a reconstruction of the machine.

to be cleaned. The nozzle E shown in Figure When it. I

5 may also be used interchangeably as a hose connection ring and as a blowing nozzle.

\Vhen it is desired to use the blower as 6 a suction cleaner the normal blowing nozzle 10 formed with tion of the bag are substantially instantaneous, a twist of the wrist suflicing for each. \Vith equal ease the hose connection E may be inserted into the central opening and the ringD and the rubber or leather packing ring shown in Figure 7 insures a tight oint.

It is not even necessary to removethe netting C unless papers or similarly relative- 1y large objects are likely to be drawn through the tube E. In that case, the ring D is first untwisted' and the netting removed, the insertion being otherwise the 531116- It will be obvious. that I have provided a convertible air cleaner which may in a moment be converted from a blower to a suction cleaner and vice-versa. When used as a suction cleaner the motor and fan casing are preferably swung over the shoulder by means of the strap H which passes through the handle B both hands being free to manipulate the hose E and any suitable cleaning tool, if any, which is mounted on the end of it.

It will be realized that while I have illustrated a practical device, many changes might be made in size, number, shape and disposition of parts without departing from the spirit of my invention and I wish the specification and drawings -to be taken, therefore, as in a broad sense diagrammat c, and'not as limiting me to the specific details and arrangements therein shown.

I claim:

1. In a convertible air cleaner, a motor, a fan chamber and a fan mounted therein, an axial air inlet therefor, a peripheral air exhaust therefor, a protecting netting in said air inlet, a removable securing element therefor, a locking connection between said securing element and the wall ot the fan chamber about said inlet, and means ior securing directly to said securing element a suction hose connection, said, means comprising in part inwardly projecting cam elements about the central aperture of said securing element, and opposed cam elements on said hose connection.

2. In combination with a blower, a caslng having a normal inlet opening and a discharge opening, a screen over said inlet openlng and a removable holding ring adapted to hold said screen in place, an engaging flange formed on said blower casing and adapted to receive said holdin ring, in combination with a suction attac ment adapted to be removably inserted in said holding ring said holding ring and said suction attachment each provided with a plurality of locking wedges whereby each may be rotated to hold and tighten the same i in position, the holding ring on the engaging flange of the blower casing and the suction attachment on the holding ring.

3. A convertible blower comprising a fan and fan casing, a motor and motor casing associated therewith, a handle therefor, an air outlet associated with said fan casing, the casing being provided with an air inlet, a removable screen for said inlet and a removable holding ring adapted to be secured to the casing to hold said screen in place, in combination with a suction attachment adapted to be removably inserted in said holding ring.

4. A convertible blower comprising a fan and fan casing, a motor and motor casing associated therewith, a handle therefor, an air outlet associated with said fan casing, the casing being provided with an air inlet, a removable screen for said inlet and a removable holding ring adapted to engage the inner edge of the air inlet with its outer face and to be thereby secured to the casing to hold said screen in place, in combination with a suction attachment adapted to engage the inside of said holding ring and to be removably inserted therein. 7

Signed at Chicago county of Cook and State of Illinois, this 28th day of April 1923.

GEORGE CLEMENTS. 

